药物过敏,是患者在用药过程中不得不面对的问题。轻度药物过敏会出现皮肤潮红、发痒、心悸、呼吸困难等现象,严重者可出现休克,甚至死亡。生病了,就会用药。大家在关心药物疗效的同时,也会担心自己是否会发生药物过敏。那么,一旦发生药物过敏,应该如何处理,有没有好的预防办法呢? Drug allergy, the patient in the medication process have to face the problem. Mild drug allergy skin flushing, itching, palpitations, dyspnea and other phenomena may occur, in severe cases there may be shock, or even death. Ill, it will medication. Everyone is concerned about the efficacy of drugs at the same time, will also worry about whether they will happen drug allergy. So, in the event of drug allergies, how to deal with, there is no good way to prevent it?